German researchers say they have discovered a fossil of a feathered hatchling that may be the earliest evidence of a plumed, meat-eating dinosaur that was not closely related to birds. The fossil is believed to belong to a young land-based dinosaur from the Late Jurassic period, some 170 million years ago, according to the study […]

Those delicious flatfishes, like halibut and sole, are also evolutionary puzzles. Their profoundly asymmetrical heads have one of the most unusual body plans among all backboned animals (vertebrates) but the evolution of their bizarre anatomy has long been a mystery. How did flatfishes, with both of their eyes on one side of their head, evolve? […]